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15130445144 = 231891305643
BaseRepresentation
bin11100001011101100…
…00100010101011000
31110001110121020210012
432011312010111120
5221441343221034
610541213541052
71043642442653
oct160566042530
943043536705
1015130445144
116464818421
122b231a4788
13157188c329
14a3769c89a
155d84cecce
hex385d84558

15130445144 has 8 divisors (see below), whose sum is σ = 28369584660. Its totient is φ = 7565222568.

The previous prime is 15130445093. The next prime is 15130445147. The reversal of 15130445144 is 44154403151.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 15130445144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15130445147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945652814 + ... + 945652829.

Almost surely, 215130445144 is an apocalyptic number.

It is an amenable number.

15130445144 is a deficient number, since it is larger than the sum of its proper divisors (13239139516).

15130445144 is a wasteful number, since it uses less digits than its factorization.

15130445144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891305649 (or 1891305645 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 15130445144 its reverse (44154403151), we get a palindrome (59284848295).

The spelling of 15130445144 in words is "fifteen billion, one hundred thirty million, four hundred forty-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 1891305643 3782611286 7565222572 15130445144